Improvement in the manufacture of shafting



UNITED STATES PATENT OFFICE CHRISTIAN F. KNEISLY AND WILLIAM WENSTHOFF,OF DAYTON, OHIO,

ASSIGNORS TO FARMERS FRIEND MANUFACTURING COMPANY, OF SAME.

PLACE.

IMPROVEMENT IN THE MANUFACTURE OF SHAFTING.

Specification forming part of Letters Patent No. 139,165, dated May 20,1873; application filed April 12, 1873.

To all whom it may concern:

Be it known that we, CHRISTIAN F. KNEISLY and WILLIAM WENSTHOFF, ofDayton, in the county of Montgomery and State of Ohio, have inventedcertain Improvements in the Manufacture of 'Bars of Iron for Shafting,of which the following is a specification:

The object of this invention is the production of bars of iron forshafting which shall be furnished with a slot or groove throughout theirentire length, or with a projecting rib throughout such length, so thatwhen it becomesnecessary to secure wheels or pulleys thereon, they canbe set in any desirable position and there held without the delay andexpense consequent upon cutting key-ways, as at present; and it consistsin bars of rolled iron, whether round or square, having inthem a slot orgroove, or it may be a projecting rib, made or formed by the rollerswhich give formto the bar, as hereinafter described.

Figure 1 of the drawing represents a round bar of iron, it beingrepresented as having formed in it a groove or slot, A, extendingthroughout its entire length, and which may be of any desired width anddepth, according to the diameter of the bar or shaft in which it is tobe formed. This slot is to be formed while the bar is being rolled,which result may be accomplished by having upon the rolls a projectionof the required size to form the same, such projection being placed uponall of the rolls through which the bar passes, or it may be placed uponthe finishing-roll only. Fig. 2 represents a modification of ourimprovement, and shows a bar of iron for shafting, with a projection, B,formed upon it by the rolls through which it passes, the onlydifiference in which would be, that in this case such rolls wouldrequire to be furnished with a. groove, into which a portion ofthe metalwould I be forced, either in finishing it or previously, by the actionof the rolls through which it has passed.

The rib shown in Fig. 2 is regarded as the equivalent of the grooveshown in Fig. 1, it

operation of rolling the shaft or bar, any number of feet or pounds ofshafting of any given diameter can be furnished at a much less cost thanby the method now in use forforming key-Ways, which consists in planing,milling,

or chipping out such grooves.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, as a new article of manufacture, is-- Bars of ironfor shafting having slots or grooves formed in them, or an elevated ribformed upon them, during the process of rolling, for the purpose ofreceiving pulleys or wheels thereon.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

CHRISTIAN F. KNEISLY. WILLIAM WENSTHOFF.

Witnesses:

B. KUHNS, E. M. GOTTSGHALL.

